This guidance document is about Reviewing Environmental Impact Statements (EIS). It is one of a series of three guidance documents on EIA published by the Commission. Review is the process of establishing whether the environmental information submitted by a developer to a competent authority, as part of an EIA procedure, is adequate to inform the decision on development consent. In many 'Member States' this information is presented in the form of an Environmental Impact Statement or EIS and the term EIS is used throughout this document for brevity. This document is not intended to be used to verify whether EIS meet legal requirements as this is only possible by reference to individual 'Member States’ legislation but it is intended to reflect the requirements of the EU directives and current good practice in EIA.